The Court of Justice interprets EU law to make sure it is applied in the same way in all EU countries. It also settles legal disputes between EU governments and EU institutions. Individuals, companies or organisations can also bring cases before the Court if they feel their rights have been infringed by an EU institution.

The Court of Justice has one judge per EU country. The Court is helped by eight ‘advocates-general’ whose job is to present opinions on the cases brought before the Court. They must do so publicly and impartially. Each judge and advocate-general is appointed for a term of six years, which can be renewed. The governments of EU countries agree on whom they want to appoint.